This listing is for new M4-0.70 Metric Coarse (Standard) Domed Cap 'Acorn' Nuts in Stainless Steel. These are made from A2 (18-8) Stainless Steel with a Grade 70 rating, or commonly just called A2-70.

Metric Size : M4 / 4mm

Thread Pitch : 0.70mm - Coarse Standard Thread

Type : Hex Nut

Specification : DIN 934

Material : Stainless Steel Grade A2-70 / 18-8

Specification sheet below: